5209797406212 has 72 divisors (see below), whose sum is σ = 15219632937600. Its totient is φ = 1471788667008.

The previous prime is 5209797406199. The next prime is 5209797406213. The reversal of 5209797406212 is 2126047979025.

5209797406212 is a `hidden beast` number, since 5 + 2 + 0 + 9 + 7 + 9 + 7 + 4 + 0 + 621 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (5209797406213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116122512 + ... + 116167367.

It is an arithmetic number, because the mean of its divisors is an integer number (211383790800).

Almost surely, 2^{5209797406212} is an apocalyptic number.

It is an amenable number.

5209797406212 is an abundant number, since it is smaller than the sum of its proper divisors (10009835531388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5209797406212 is a wasteful number, since it uses less digits than its factorization.

5209797406212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232289985 (or 232289980 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 5209797406212 in words is "five trillion, two hundred nine billion, seven hundred ninety-seven million, four hundred six thousand, two hundred twelve".